Some time ago Thom Hogan posted that digital might not actually be cheaper than film, because you end up buying new bodies so often. I'm starting to agree with him, even though I shoot far more digital shots than film.

No one forces you to upgrade.

Do the math - how many shots you take with digital and how much would it cost to shoot that much on film?

Well...if a bunch of photographic fluff in a portfolio is so important, then digital is great. I prefer to think before hitting the shutter like a jack hammer.